Nuoc mam

Traditional nước mắm is made by layering small fish, typically anchovies, with sea salt in large wooden barrels. This mixture is then allowed to ferment for several months to develop its signature pungent, amber-colored profile.

Phú Quốc island is widely considered the premier production center for high-quality Vietnamese fish sauce. The island's traditional methods and local anchovy species give its nước mắm a distinct and highly sought-after flavor profile.

While both are fermented fish sauces, Vietnamese nước mắm typically relies purely on the natural fermentation of anchovies and sea salt without added water. Thai fish sauces often have a slightly sweeter profile and may include different fish species or added sugars.

Nước mắm itself cannot be used as a vegetarian substitute because it is strictly made from fermented fish. However, vegetarians often use fermented soybean sauces or mushroom extracts to mimic the salty umami depth that nước mắm provides in Vietnamese cuisine.